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andrezito [222]
3 years ago
12

What happens when an electron falls to a lower energy level?

Chemistry
1 answer:
olasank [31]3 years ago
4 0
The electron releases energy.
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Which of the following would be a reasonable synthesis of CH3CH2CH2CH2OH?Group of answer choices
vampirchik [111]

Answer:

B. 1-Butene rightarrow (1) BH3: THF (2)H202, OH-

Explanation:

In the hydroboration of alkenes, an alkene is hydrated to form an alcohol with anti-Markovnikov orientation.

the reagent BH₃:THF is the way that borane is used in organic reactions. The BH₃ adds to the double bond of an alkene to form an alkyl borane. Peroxide hydrogen in basic medium oxidizes the alkyl borane to form an alcohol. Indeed, hydroboration-oxidation converts alkenes to alcohols by adding water through the double bond, with anti-Markovnikov orientation.

8 0
3 years ago
An atom of a certain element has 12 protons, 14 neutrons, and 2 valence electrons. What is the name of this element?
DedPeter [7]

Given :

An atom of a certain element has 12 protons, 14 neutrons, and 2 valence electrons.

To Find :

The name of this element.

Solution :

We know, element with atomic number ( number of protons ) 12 and valance electrons is Magnesium.

Now, isotope of magnesium of proton with 14 neutrons is Mg-16 .

Therefore, name of element is Mg-16 .

Hence, this is the required solution.

5 0
2 years ago
Please help me!!!!!!!!!!!!!
Verizon [17]

double-displacement reaction

Explanation:

We have the chemical reaction:

Na₂S (aq) + Cd(NO₃)₂ (aq) → CdS (s) + 2 NaNO₃ (aq)

where:

(aq) - aqueous

(s) - solid

This is a double-displacement reaction because the reactants exchange atoms or group of atoms between themselves to form the products. To drive the reaction to the right, one of the products is a precipitate.

Generally we can express the double-displacement reaction as following:

AB + CD → AC + BD

Learn more about:

types of chemical reactions

brainly.com/question/13824617

#learnwithBrainly

3 0
2 years ago
The following transition occurs at a molecular level for a substance. What transition corresponds to this change in microscopic
olchik [2.2K]

Answer:

D. Freezing

Explanation:

Please mark brainliest and have a great day!

5 0
3 years ago
Read 2 more answers
: Question List
Ira Lisetskai [31]
Potassium it is the answer

6 0
3 years ago
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